The shape of California's November ballot firmed up Thursday as two proposals with implications for the state's housing crisis — one that would modify the 40-year-old Proposition 13 and the other to repeal a 23-year-old measure that limited rent control — were cleared to go before voters.
The two proposals add to a crowded slate of issues that California voters will be asked to decide, including a move pushed by venture capitalist Tim Draper to split the state into three and another to repeal…